<template>
    <div class="comment">
        <h3>发表评论</h3>
        <hr>
        <textarea placeholder="请输入要BB的内容（做多吐槽120）"
        maxlength="120" v-model='msg'></textarea>
        <mt-button type="primary" size="large" @click="postComment">发表评论</mt-button>
        <div class="cmt-list">
            <div class="cmt-item" v-for="(item, index) in comments" :key="index">
                <div class="cmt-title">
                    第{{index + 1}}楼&nbsp;&nbsp;用户：{{item.user_name}}&nbsp;&nbsp;发表时间：{{item.add_time | dateFormat}}
                </div>
                <div class="cmt-body">
                    {{item.content==='undefined' ? '此用户很懒,未发表评论' : item.content}}
                </div>
            </div>
        </div>
        <mt-button type="danger" size="large" plain @click="getMore">加载更多</mt-button>
    </div>
</template>
<script>
import { Toast } from "mint-ui";
export default {
  name: "comment",
  props: ["id"],
  data() {
    return {
      pageindex: 1,
      comments: [],
      msg:''
    };
  },
  created() {
    this.getcomments();
  },
  methods: {
    getcomments: function() {
      this.$axios
        .get("getcomments/" + this.id + "?pageindex=" + this.pageindex)
        .then(result => {
          if (result.data.status === 0) {
            // this.comments = result.data.message;
            this.comments = this.comments.concat(result.data.message);
          } else {
            Toast("网络不通，请稍后在试");
          }
        });
    },
    getMore: function() {
      this.pageindex++;
      this.getcomments();
    },
    postComment() {
      if(this.msg.trim().length===0){
        return Toast('评论内容不能为空！！！');
      }
      this.$axios.post("postcomment/" + this.id,{content:this.msg}).then(result => {
        if (result.data.status === 0) {
          let cmt={
            user_name :"残梦寻梦",
            add_time:Date.now,
            content:this.msg.trim()
          }
          this.comments.unshift(cmt);
          this.msg=""
        } else {
          Toast("网络不通，请稍后在试");
        }
      });
    }
  }
};
</script>


<style lang="scss" scoped>
.comment {
  h3 {
    font-size: 18px;
  }
  textarea {
    font-size: 14px;
    height: 85px;
    margin: 0;
  }
}
.cmt-list {
  margin: 5px, 0;
  .cmt-item {
    font-size: 13px;
    .cmt-title {
      line-height: 30px;
      background-color: #ccc;
    }
    .cmt-body {
      line-height: 35px;
      text-indent: 2em;
    }
  }
}
</style>
